Rose Action Sports cut the barrel down to 14" exactly for a perfect fit with the mag tube end cap (no threads on this particular barrel). 14.5" would have extended a bit past, as I wanted everything flush for tight quarters w/ stock fully collapsed. Very nice cut & crowning work by RAS might I add...
We tried to heat up the original front sight to "un-solder" it for re-use, but that was a no-go. At the time, no Vang-Comp sights were in stock/on hand, so we went with a LPA front sight w/ tritium insert from Fusion Firearms: https://fusionfirearms.com/lpa-front-shotgun-sight-low-solder-on-tritium Since the sight is "adjustable", co-witness with original rear sight was no problem.
Let me know if you have any additional questions or concerns. Semper Fi!